Coming back from a morning flight, set up for landing on Rwy 17. Touchdown was uneventful until just after the nose touched the ground. The right main went flat and created a lot of drag. I immediately hit the brakes and the plane stopped while still on the runway. I got out and fortunately had no damage to the wheel pant, just a little tar stain. With help form the FBO crew, managed to get the plane off the runway the tire changed. Found a hole in the tube from some foreign object. Lesson learned - replace the tire before it gets too bald.